Suppose 0 = -2*s + 20. Let n = -5 + s. Solve n*k - 2*k = -15 for k.

Let f be -1 - -1 - (6 - 8). Suppose -5*x = -5*a + f*a - 8, -a = x. Let n = a - -8. Solve -n*t = -3*t - 12 for t.

3

Let c(j) be the first derivative of -j⁴⁄₄ - 7*j³⁄₃ - 5*j**²⁄₂ + 6*j + 5. Let t be c(-6). Solve -2*l + 3*l = t for l.

0

Suppose 6 = 3*p, 0 = 5*r + p + 3*p - 33. Suppose 3*n - r = -m - 3, 3*m = 4*n + 6. Suppose -4*c - h + 6*h = -7, 0 = -h + 1. Solve -c*o = -n*o - 15 for o.

5

Let p = 41 - 37. Solve p*i + 0 + 8 = 0 for i.

-2

Suppose 0 = u - 3*v + 4, -3*u + 2*v = -u. Solve 2 = -2*o - u for o.

-2

Suppose -7*v = -2*v - 50. Let b = -7 + v. Let n be b/12 + ¹⁹⁸⁄₈. Solve 3*c + n = -2*c for c.

-5

Let o(d) = 2*d + 4. Let h be o(0). Suppose j - 3 - 3 = 3*g, h*g = j - 7. Solve j*u + u = -16 for u.

-4

Suppose 0 = 2*x - 5 + 1. Let k be ((0/x)/2)/(-1). Solve 0 = -k*u - 2*u - 8 for u.

-4

Let a(k) = -k + 5. Let u be a(6). Let o be 0/2*u/2. Suppose -x + 2 = -1. Solve x*v - v = o for v.

0

Let u = 56 + -56. Solve 4*w - 23 + 7 = u for w.

4